Alternating-current motor.



i J. H. BRYSON. ,ALTBRNATING CURRENT MOTOR. APPLICATION FILED 0011. 7.1907.

900,47, Patented 0013.6,1908.

E WITNESSES; l/WENTQR clear, and exact description i whloh are commuted at starting the organizations or electricsi .which may he modified {it the 125 'of'the rotary member of theimotor.

-. t the idea, but what I do citizen of the United 7 Motor, of which the followin of such motors.

reference refer to similar parts,

resents 111 diagram,

ess so,

JAMES H. BRYSON, OF ST. LOUIS, MISSOURI, ASSIGNOR TO WAGNER ELECTRIC MANUFACTURING COMPANY, OF MISSOURI.

No. 900,478. Specification of Application filed October 7 i I Toall whom it may concern:

Be it'known that l, JAMEs H", BRYsoN, e States, residing-ct St.

I sols, in the State of Missouri, have invented. a certain new and useful Altcrnatingi urrent is such :1 foil, as will enshle any one skilledin the art to Whici'i it sppcr- 7 teins to make and use the some, reference being hedto the accompanying drawing, forny ving pe rt of thisspecificetion;

' My Invention relates to slternatine current induction motors I and more speoiicelly to means for reversing the direction of rotation It is applicable to omunher of different forms of motors, but more perticulerly to single phase motors of the selfstarting verietyin' which one of the members is provided with a winding, the currents in to produce definite-armature magnetic oles. i provide such a'motor with ssubdivi ed iie'id winding, connections of Will of the oporator toreverse the direction of movement I do not claim as my invention the breed embodiment claim as my invcn v tion and What I seek to COYQBI' by Letters Pet- 39 Tent, is a new and simplified arrangement of the field windings for accomplishing the re I suitsstated, consisting of s fewer number of Q erts-' than have hitherto been employed.

ne of the advantages ofthis arrangement is thermiuction of the switch contacts to two stead of four, which is the number generally used in the prml art. Such reduction produces superior-results so for as ens-thing, 1 the amount of copperend simplicity are con flcerned.

In the drawing, in which iike cherecters oi thefigute reps type'of motor embody.- invention;

eg .i e erring to the fi um, 10 and 11 indicate the-mains through W ich singie pliesecltes noting current is supplied from on external source, to the stationery member or field of the motor. The Winding of this field is (ii-- vided into two grou s,'eaoh groug being sub t d vided nto two 001 s. One of t,

ese groups,

the main group, is composed. of the coils i2 and 13, While the other or auxiliary group, is composed of the coils -21 endZZ.

Oneend of LOUIS, MISSOURI, A CORPORATION OF ALTERNATING-CURRENT MOTOR.

Letters Patent.

the coil 13 is directly connected to the lead 11,1 and itsopposite end. is connected by the conductor 14 to one end of the )osite end of the coil 1211s connected to two iJIftl'lCll conductors 15 end 17. Theconductor i7 is connected directly to :1. terminal 01' contact 4 oic switch 16 in the iced 10, While the conductor 1.5 is connected through the auxiliary coil 21, conductor 23, auxiliary coil 22 and conductor 24 to enotherterminal or contact of said switch 18.

armature of the motor lsr form shown in the drawing, is also the induced member, it is composed of e Winding 25 connected by means of leads 26 to the segments of s commutator. Brushes 28 which, in the particupivoted member e contacts 34 connected to resistances from the armature circuit. 38

tests 34. When the motor is started, as hereinsi'tez' described, the arm 33 rests upon the contact 38, thereby opening the circuit through the conductors 31.

In'the operstion ofimy invention it will be evident that When the switch 16 is brought into contact with, the switch terminal 4}, oniy'the main coils 12 and 13 see energized, therelov producing c field having its axial line suhstentielly coincident with the dotted lines-A, inciieedmt an a propiiete angle to the line of the brushes B to produce rotation of the armature in and with a torque dependent upon the engu ler displacement ofthe line'heA-fifom the line BB. Should, however, the switch 16 rest upon the tcirminel 40, the meincqils 12 and 13 and the mixilicry coils 21 and 22wili be connected. to cther in series reducing a resultant field .e-ving its tXiM line sub slusntieil coincident with the dotted-line (#4), i he positions? the hi ushesreu siningthe some, it is evident that the motor will ieferring now to the rotary member or rushes are connested through leads 31, with the three di-V visions 32 of a resistance member.- 33 1s a the lesistsnce 32, to greduellyexclude scid' creo'pen circuit contacts edjccentto the con-I egiven, direction now be rotated in c. directiuuopposito ice-thetcoil '12; the opin which it "\YOdlQi rotate were the main (:eils 12 and 13 only in circuit. is evident that the {Erection of rotation of the motoy may he 1'eve""e l at will.

it will, (if course, he understood that 1pmfer ts start my meter with the arm en the contact 3L there openin the circuit through the resistance 2-3 A; l the motor has received an initial rotation the sine 33 is rotated to List include and then gradually exclude the resistance 32 from eirciiit and thus short-circuit the win-s" 25 of the meter. When this is clone the brushes 28 are mastic-Lilly excluded from my active psrtieipstion in the operation of the motor. it wil of course, llllClQi'StOOii that by-eut- Asist-ence 32 into and out of the cirggeeli of the meter may he regumy invention,

What I claim as new and desire to secure by Letters Patent 0f the United States is:

in an electric motor, the combination with. a pair of relatively rotatable members, oi

means for predu'eing definite poles in one of in testimony whereof, i have hereunto set my hand and iiiiixed my seal in the presence of the two subscribing Witnesses.

JAMES H. BRYBON. [.L. s]

Witnesses ELXZABETH Ben's MARY T. RAMSEY. 

